Synthesis and Optoelectronic Characterization of Some Star-Shaped Oligomers with Benzene and Triphenylamine Cores

Table 1

Optical data for synthesized arylenevinylene oligomers.

Oligomer	𝜆abs^max (nm)^(a)	𝜆em^max (nm)^(a)	𝐸𝑔 (eV)^(b)
D 1	258, 406	522	2.52
D2	325, 404	463	2.75
D3	308, 330, 406	465	2.71
D4	302, 374	443	2.92
D5	316, 374	432	2.94
D6	310, 376	445	2.94

^(a)Determined in diluted CHCl₃ solution; ^(b)obtained from UV-Vis spectra: 𝐸_𝑔 = 1240/𝜆_onset.